"Scroll View" (as Finale calls it)
Scroll View from Finale would be nice.
When I'm working with the music, I don't like being bothered by the page layout.
Scroll View is a way of hiding all the page layout issues and just working with the music.
It's basically just (temporarily) setting the width of the page to the sum of the widths of all of the measures from a selected viewpoint to the end, plus some margins.